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Old 09-06-2012, 06:33 AM   #281
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Default Re: the gutless, bloated, and fried power supply hall of shame

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I bet no one thought a Delta would ever end up on here, but today I have just that - a destroyed delta. THe fan was branded T&T (Thieves & Thugs ?) and it quit. ..... The cool part is, it still runs
Well, to be fair, it's a Delta, it still runs, it probably isn't gutless, and it was all the fault of the fan anyway.

Certainly bloated and fried though!
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Old 09-06-2012, 01:19 PM   #282
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Default Re: the gutless, bloated, and fried power supply hall of shame

CapXon and Ltec would fail anyway... note the unbulged Taicon, those actually seem like OK caps, haven't seen any fail YET. It's less ambient temperature and more ripple current that kills crap caps.
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Old 09-07-2012, 12:34 AM   #283
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Default Re: the gutless, bloated, and fried power supply hall of shame

I removed the caps today, and I got a photo with some better light. Now you can really see how bad the heat discolouration is

EDIT: I also took the failed fan apart, and I think there was more to this than just bad sleeve bearings. It looks like there was lots of rust around the magnet on the blade housing and on the motor
Attached Images
File Type: jpg Burned PCB.JPG (317.4 KB, 209 views)
File Type: jpg Rusted fan.JPG (298.2 KB, 147 views)
File Type: jpg Rusted motor.JPG (323.0 KB, 129 views)
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Last edited by c_hegge; 09-07-2012 at 12:45 AM..
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Old 09-07-2012, 03:21 AM   #284
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Default Re: the gutless, bloated, and fried power supply hall of shame

Not nice, really. In some worse fans when sometimes the magnet tends to rub against motor I lubricate it with vaseline. Maybe if you will clean it you can as well use itfor conserving again corosion.
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Old 09-07-2012, 04:26 AM   #285
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Default Re: the gutless, bloated, and fried power supply hall of shame

I probably won't worry. I have a few spare Yate Loon fans which are in much better condition, so I'll probably just replace it with one of them

EDIT: I probably should also add that the plastic washer which holds the blade housing to the motor crumbled when I took the fan apart.

Last edited by c_hegge; 09-07-2012 at 04:37 AM..
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Old 09-07-2012, 05:32 AM   #286
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Default Re: the gutless, bloated, and fried power supply hall of shame

I wonder if the rust is what jammed it?

Looks like you forgot to desolder the leads of C103?
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Old 09-07-2012, 02:45 PM   #287
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Default Re: the gutless, bloated, and fried power supply hall of shame

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Looks like you forgot to desolder the leads of C103?
Oh bloody hell
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Old 09-07-2012, 03:05 PM   #288
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Default Re: the gutless, bloated, and fried power supply hall of shame

R.I.P. to that Delta. That thing is SCORCHED!!!
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Old 09-07-2012, 03:10 PM   #289
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Default Re: the gutless, bloated, and fried power supply hall of shame

If that power supply lacks protection circuitry of any sort, that may be why it still works with bloated capacitors.
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Old 09-07-2012, 04:18 PM   #290
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Default Re: the gutless, bloated, and fried power supply hall of shame

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Looks like you forgot to desolder the leads of C103?
That one really didn't want to come out (maybe due to the generous use of glue on that leg). The other leg broke was I was trying to bend and twist the cap out of there.

Last edited by c_hegge; 09-07-2012 at 04:20 PM..
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Old 09-07-2012, 04:19 PM   #291
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Default Re: the gutless, bloated, and fried power supply hall of shame

Pliers?
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Old 09-08-2012, 01:17 AM   #292
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Default Re: the gutless, bloated, and fried power supply hall of shame

^
Yes
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Old 09-08-2012, 04:55 AM   #293
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Default fried Apple power supply

There's me happily using my old Apple PowerBook 1400, then the next time I come to use it, nothing. So I open up the little brown brick (the official power supply) and was amazed to discover the destruction shown in the pik. I have no idea what caused it.
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File Type: jpg applepowerbookpsu.jpg (134.7 KB, 136 views)
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Old 09-08-2012, 06:12 AM   #294
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Default Re: fried Apple power supply

Quote:
Originally Posted by itwentboom View Post
There's me happily using my old Apple PowerBook 1400, then the next time I come to use it, nothing. So I open up the little brown brick (the official power supply) and was amazed to discover the destruction shown in the pik. I have no idea what caused it.
Looks like a diode and two resistors burned.
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Old 09-09-2012, 05:03 PM   #295
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Default Re: the gutless, bloated, and fried power supply hall of shame

Quote:
Originally Posted by c_hegge View Post
I removed the caps today, and I got a photo with some better light. Now you can really see how bad the heat discolouration is
Wow! That really is the most toasty, well-done PSU PCB I've seen. I'm surprised the output choke didn't burn.

Quote:
Originally Posted by c_hegge View Post
EDIT: I also took the failed fan apart, and I think there was more to this than just bad sleeve bearings. It looks like there was lots of rust around the magnet on the blade housing and on the motor
Not good.
Although likely salvageable if you cared enough to fix it. I would - extra spare junk fans for the random project never hurt. Sandpaper and a bit of oil is really all you need. When I find a fan that has started to get rust on the stator, I just lube it with machine oil.

Last edited by momaka; 09-09-2012 at 05:05 PM..
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Old 09-09-2012, 05:17 PM   #296
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Default Re: the gutless, bloated, and fried power supply hall of shame

As I stated, I use vaseline, it is better I think. Oil just vaporizes or dries out due to absorption in dust. Vaseline is more durable I think and lubricates even full of dust.
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Old 09-09-2012, 11:47 PM   #297
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Default Re: the gutless, bloated, and fried power supply hall of shame

I have a large box full of spare fans. I only ever keep really good fans nowadays.
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Old 09-10-2012, 08:40 PM   #298
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Default Re: the gutless, bloated, and fried power supply hall of shame

Here is an 8 years old Antec that was still running, though a bit unstable. Nice collection of toasted caps awaits:
Attached Images
File Type: jpg P8310004.JPG (371.4 KB, 80 views)
File Type: jpg P8310005.JPG (492.8 KB, 84 views)
File Type: jpg P8310006.JPG (498.2 KB, 174 views)
File Type: jpg P8310007.JPG (516.4 KB, 166 views)
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Old 09-10-2012, 08:56 PM   #299
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Default Re: the gutless, bloated, and fried power supply hall of shame

What model is that?? Looks like some very old topology.
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Old 09-10-2012, 09:25 PM   #300
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Default Re: the gutless, bloated, and fried power supply hall of shame

Looks pretty good apart from the Fuhjyyu crap
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